import matplotlib.pyplot as plt

from random_walk import RandomWalk

#创建一个RandomWalk实例，并将其包含的点都绘制出来
while True:
	rw = RandomWalk(50000)
	rw.fill_walk()
	
	#调整窗口的尺寸
	plt.figure(figsize=(10,6))
	
	point_numbers = list(range(rw.num_points))
	
	plt.scatter(rw.x_values, rw.y_values, c=point_numbers, cmap=plt.cm.Blues,
		edgecolor='none', s=1)
		
	#突出起点和中点
	plt.scatter(0,0,c='green',edgecolors='none',s=100)
	plt.scatter(rw.x_values[-1],rw.y_values[-1],c='red',edgecolors='none'
		,s=100)
	
	#隐藏坐标轴
	plt.axes().get_xaxis().set_visible(False)
	plt.axes().get_yaxis().set_visible(False)
		
	plt.show()
	
	keep_running = input("Make another walk? (y/n):")
	if keep_running == 'n':
		break
